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1 INTRODUCTION
Harmonisationofriverinformationservicesisoneof
thekeyobjectivesoftheEUtransportpolicy.Inorder
to adjust the Polish inland transport to modern
logisticssolutionsandintegrateitintotheintermodal
transport network, the River Information Services
(RIS)systemhasbeendeveloped.
Vessels used in inland waterway tra
nsport are
smaller than those in use in maritime shipping, and
are often pushed or towed units. A modern inland
vesselhasrelativelylowenergyconsumptionandso
isenvironmentallyfriendlyandsafe.
In order to implement the RIS system in the
territory of the European Union, it is necessary to
developanddeployacommunicationssystemwhich
will enable exchange of all the informat
ion required
forsafeinlandnavigation.RISsystemmodulesmust
ensure integral data exchange, achieved through
standardization of the applications and technologies
used.[1],[8]
The strategies outlined in the relevant EU
directives encourage the use of highend radio
communication solutions in the ma
nagement of
inlandwaterwaytrafficandtransport.
The RIS Centre archives, processes and provides
information to masters of inland navigation vessels
and supports the processes of planning and
management of river traffic and transport. The
possibility of implementation and use of the Global
Maritime Distress and Safety System (GMDSS) in
inlandnavigationisoneofthefact
orslinkingthetwo
transport branches inland waterway transport and
maritimeshipping.
2 GLOBALMARITIMEDISTRESSANDSAFETY
SYSTEM[2],[3]
Implementation of the GMDSS by the International
Maritime Organization (IMO) in collaboration with
Maritime Communications in RIS System for Inland
Navigation
A.Lisaj
M
aritimeUniversityofSzczecin,Poland
ABSTRACT:ThearticlepresentstheVHFcommunicationssystemarchitectureforinlandnavigationwithinthe
areaofoperationoftheRISPLCentre.
TheauthorhasdescribedthecommunicationsystemmodulesusedintheRISontheLowerOderstretchand
presentedtherelevantequipmentspecification.
The present condit
ion of the system has been described, taking into consideration the location of its
components,bothinthefieldandintheenvironment,ofkeyimportanceforVHFcommunication.
The feasibility of implementation of GMDSS subsystems for integrated navigational data transmission in
maritimeandinlandnavigationattheRISPLCentrehasbeendiscussed.
http://www.transnav.eu
the International Journal
on Marine Navigation
and Safety of Sea Transportation
Volume 9
Number 2
June 2015
DOI:10.12716/1001.09.02.18
288
the International Telecommunications Union (ITO)
hasmadeitpossibletosendautomateddistresscalls
inemergencysituations.
Figure1.GMDSSsubsystems.[12]
The system is designed to minimise the time
requiredforsendingadistressalert,locatethevessel
in distress and ensure communication on site
required for coordination of the search and rescue
operation.
In the development of both analogue and digital
radio communication, several GMDSS subsystems
havebeenisolated.(Fig.1)
The radio infrastructure of data transmission in
inland shipping should be compatible with the
GMDSS in use at sea, with its operation based on
terrestrial transmission channels, wireless Internet
and satellite transmission channels. Digital data
processing systems DSC (Digital Selective Calling)
and VHF radio communication systems ensure
reliable vesselto
shore and vesseltovessel
communicationininlandnavigation.
3 VHFCOMMUNICATIONSYSTEM
ARCHITECTUREFORTHEPOLISHRISSYSTEM
ONTHELOWERODERSTRETCH[4],[6],[12]
One of the main characteristics of the River
Information Service is efficient and reliable flow of
information.Itcanbeeffectivelyachievedinrealtime
through
VHF communication, which is of key
importance in maritime navigation and has been
implemented to meet the requirements of inland
waterwayshippingservices.
VHFcommunicationisinuseininlandnavigation
toensuresafeflowofinformationamongvesselsand
servicescoordinatingSARoperationswithintheRIS
PLsystemoperation
range.
3.1 RISPLOperatingCentre[14],[15]
The Operating Centre is the heart of the River
InformationServicessystem.Basedinthebuildingof
the Inland Navigation Office (UrządŻeglugi
Śródlądowej) in Szczecin at pl. Stefana Batorego 4, it
wasofficiallylaunchedon16May2014(see
Fig.2).
Figure2.BuildinghousingtheRISPLOperatingCentre.
Source:Ownwork,basedon[15].
Withinausablefloorareaof200sqm,aroomhas
beenarranged forthemaintenanceofconstantradio
watch by three system operators who control the
system modules. The foreground item of the
equipmentisadisplayconsistingofsixLCDscreens.
Itdisplays aview of the AIS
and views from CCTV
cameras,which,combined,supportrealtimeviewof
the situation on the river. The RIS Centre also
provides electronic charts for the purposes of the
Inland ECDIS, transmits Notices to Skippers (NtS),
receives ERI messages and ensures system users
reliableVHFradiocommunication.
TheRISPL
coversatotalareaboundedby:
thevillageofOgnicasouthernend(697kmofthe
RiverOder),
Western Oder northern end (36.55 km of the
RiverOdertheTrasaZamkowaroute),
EasternOderatthemouthoftheRiverRegalicato
LakeDąbienorthernend(741.6km),and
LakeDąbie.
3.2 LocationofVHFcommunicationmodulesintheRIS
PLsystem[12],[14]
3.2.1 VHFnetworknodeEwaGrainElevator[11]
The primary VHF network node of the RISPL
systemisthebaseradiostationlocatedontheroofof
the Ewa Grain Elevator. Owing to
its location (in
position 53.4373°N, 14.5842°E, on thegrounds of the
SzczecinHarbour)andtheimplementedtechnology,
the radio station enables VHF communication
throughouttheRISPLareaupto(andincluding)the
village of Ognica. The existing building has been
alteredfortheinstallationofantennasaswellasthe
requiredpowersourcesandbaseradiostationdevices
onitsroof.
VHF communication is carried out through four
device modules: two universal radiotelephones
MotorolaGM360withoutaDSCunit,andtwoSailor
series6222VHFDSCunits.Forthepurposeofvessel
trafficsupervision,thebaseradiostationonthe
Ewa
Grain Elevator is equipped with two Inland AIS
SAAB R40 devices. Each VHF radio station has a
separateLATEYVYSbeamantenna.
NBDP
MF/HF
VHF
Communication
MF/HF
Communication
DSCVHF
DSCMF/HF
INMARSAT
NAVTEX
COSPAS
SARSAT
EGC
EPIRB
SART
AISSART
GMDSS